The Voice judges Blake Shelton and Gwen Stefani (aka the coolest woman in the world) stopped by The Tonight Show Starring Jimmy Fallon and performed in the much-loved Lip Sync Battle.  Shelton performed “Putting on the Ritz” and Starship’s “Nothing’s Gonna Stop Us Now.” Stefani whipped out all her No Doubt dance moves for her “performance” of Carly Rae Jepsen’s “Call Me Maybe.” The clear winning performance was Stefani and Shelton’s duet of “Endless Love”